Photocatalytic decomposition of methylene blue via Fenton mechanisms by silicon wafer doped with Au and Cu: a theoretical and experimental study

Página do item simplificado
dc.contributor.authorRamalho, Teodorico C.
dc.contributor.authorCarvalho, Hudson W. P.
dc.contributor.authorBatista, Ana P. L.
dc.contributor.authorPerez, Carlos A.
dc.contributor.authorGobbi, Angelo L.
dc.contributor.institutionUniversidade Federal de Lavras (UFLA)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionBrazilian Synchrotron Light Lab
dc.date.accessioned2014-05-20T15:32:50Z
dc.date.available2014-05-20T15:32:50Z
dc.date.issued2009-02-01
dc.description.abstractIn this work, we studied the photocatalytic and the structural aspects of silicon wafers doped with Au and Cu submitted to thermal treatment. The materials were obtained by deposition of metals on Si using the sputtering method followed by fast heating method. The photocatalyst materials were characterized by synchrotron-grazing incidence X-ray fluorescence, ultraviolet-visible spectroscopy, X-ray diffraction, and assays of H(2)O(2) degradation. The doping process decreases the optical band gap of materials and the doping with Au causes structural changes. The best photocatalytic activity was found for thermally treated material doped with Au. Theoretical calculations at density functional theory level are in agreement with the experimental data.en
dc.description.affiliationUniversidade Federal de Lavras (UFLA), Dept Chem, BR-37200000 Lavras, MG, Brazil
dc.description.affiliationState Univ São Paulo, Dept Phys Chem, São Paulo, Brazil
dc.description.affiliationUniv São Paulo, Dept Chem, São Paulo, Brazil
dc.description.affiliationBrazilian Synchrotron Light Lab, São Paulo, Brazil
dc.description.affiliationUnespState Univ São Paulo, Dept Phys Chem, São Paulo, Brazil
dc.description.sponsorshipBrazilian Synchrotron Light Source
dc.description.sponsorshipIdLNLS: D09B-XRF6637/07
dc.format.extent1029-1034
dc.identifierhttp://dx.doi.org/10.1007/s10853-008-3206-9
dc.identifier.citationJournal of Materials Science. New York: Springer, v. 44, n. 4, p. 1029-1034, 2009.
dc.identifier.doi10.1007/s10853-008-3206-9
dc.identifier.issn0022-2461
dc.identifier.urihttp://hdl.handle.net/11449/41628
dc.identifier.wosWOS:000263022800014
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofJournal of Materials Science
dc.relation.ispartofjcr2.993
dc.relation.ispartofsjr0,807
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titlePhotocatalytic decomposition of methylene blue via Fenton mechanisms by silicon wafer doped with Au and Cu: a theoretical and experimental studyen
dc.typeArtigo
dcterms.licensehttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dcterms.rightsHolderSpringer

Arquivos

Licença do Pacote
Agora exibindo 1 - 2 de 2
Nenhuma Miniatura disponível
Nome:
license.txt
Tamanho:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descrição:
Nenhuma Miniatura disponível
Nome:
license.txt
Tamanho:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descrição:

Coleções

Artigos